Synopsis
Takeshi Ninno outwardly seems to share a normal bond with his stepmother, Shino Oshino, and his stepsister, Shinobu Oshino. However, behind closed doors, Shino forces Takeshi into unwelcome sexual situations. Though these acts cause him distress, Takeshi feels conflicted because he fears Shinobu will hold a grudge against him if she learns about their intimate encounters. The situation grows even more complicated when another stepsister, Fumino Oshino, suddenly reenters their household.
Background
Chibo was released on DVD in English as Mother Knows Breast by Kitty Media on July 25, 2006.
